Maybe they all support destroying the world using a 'true dragon', but they also all, individually and secretly, want to survive the ordeal which means they're all delaying it to search for a way to survive.
A ton of characters introduced with no clear link to the plot.
A MC unwilling to do anything and lame.
This is one hell of a slow start considering that we're 3 volumes in.
A few chapters ago, MC resolved to stop the easy life and do everything he could in order to help his wife and children.
It was just before he learned teleportation magic.